Sharp Kabushiki Kaisha Corporation

Junsei Sato

Hisao Hattori

Ryota Yagi

Tatsuo Sudoh

Takeaki Suenaga

Takuto Ichikawa

Chanbin Ni

To prevent the measurement of the position of a speaker from not being performed in a case where the position of the speaker is changed, and prevent the measurement of the position of the speaker from being performed more than necessary. An AV amplifier () according to an aspect of the present invention includes: a control unit () that detects a change in the installation position of at least one speaker () that supplies an audio signal; and a measurement unit () that measures the installation position of at least the speaker () of which the installation position is changed among the plurality of speakers (), automatically or according to a user operation, after the change is detected by the control unit ().

Sound apparatus, television receiver, speaker device, audio signal adjustment method, and recording medium

An audio signal playback device includes a conversion unit that performs discrete Fourier transform on each of 2 channel audio signals obtained from a multi-channel input audio signal, a correlation signal extraction unit that, disregarding a direct current component, extracts a correlation signal from the 2 channel audio signals that result from the discrete Fourier transform, and additionally pulls a correlation signal in a lower frequency than a predetermined frequency fout of the correlation signal, and an output unit that allocates the pulled-out correlation signal to a virtual sound source in such a manner that a time difference in a sound output between adjacent speakers falls within a range of 2&#x394;x/c (where, &#x394;x is a distance between the adjacent speakers, and c is the speed of sound), and outputs a result of the allocation from one portion or all portions of the speaker group.

Audio signal playback device, method, and recording medium

Positive and negative two terminals of each of a plurality of main speakers constituting an array speaker are connected to each of amplifiers. Then, the main speakers are bridge-driven. Sub-speakers interpolating the main speakers are arranged respectively between the main speakers. Then, the positive and negative terminals of each of the sub-speakers are connected respectively to the terminals of the same polarities of the adjacent two of the main speakers. One sub-speaker receives an average value of the signals provided to the adjacent two main speakers, so that the one sub-speaker interpolates the wavefronts emitted from the adjacent two main speakers.

Acoustic system

An audio signal processing device capable of separating audio signal components which enhance the sence of presense from two channels of audio signals and increasing or decreasing pressure for the components is provided. The audio signal processing device (illustrated as an audio signal processing portion) is provided with a signal extraction portion (illustrated as a signal separation and extraction portion) for extracting, from input audio signals of two channels, uncorrelated signals derived from the signals; an uncorrelated signal increase/decrease portion (illustrated as gain adjustment portionsand) for increasing or decreasing signals extracted at the signal extraction portion; and an audio signal summing portion for summing the signals that have been increased or decreased at the uncorrelated signal increase/decrease portion and the input audio signal.

Audio signal processing device, method, program, and recording medium for processing audio signal to be reproduced by plurality of speakers

A multimedia processing device implements a script having a data structure that is formed of a drawing information describing portion where media data is chronologically described, and a user navigation information describing portion where correspondence between events and actions and implementation conditions are chronologically described. The multimedia processing device implements this script, and thereby, media data is chronologically reproduced, and at the same time, a user interface showing operations that can be chronologically carried out is outputted. Then, a predetermined process, such as an insertion of media data, can be implemented by carrying out the operations following the user interface according to predetermined timing.

Multimedia data processing device which can easily prepare multimedia contents

Multimedia data processing device which can easily prepare multimedia contents and output changed contents

A computer-readable recording medium recording multimedia contents data and a data structure that represents a chronological sequence of operations that are processed in a data processing device. The computer-readable recording medium includes a schedule portion including a predetermined reproduction time when the media data is to be reproduced in the reproducing unit and a predetermined input time when the input operation is to be received by the input unit. The data processing device performs steps of processing the multimedia contents data so that the predetermined media data is reproduced at the predetermined reproduction time on the basis of a schedule portion, receiving a predetermined input operation at the predetermined input time. The data processing device carries out a predetermined editing operation and resumes processing of the multimedia contents in accordance with the schedule portion.

Growing community of inventors

Osaka, Japan

Junsei Sato